Reddit reviews Problem Book in Relativity and Gravitation

If the science-based Bigfoot biologists expect the hand-waving deniers to wake up, open their minds, and realistically examine the evidence, we also need to keep an open mind about metaphysical theories and dispassionately test them with the evidence.

If you think you know all there is to know about physics and what is possible in the universe, open a textbook or two and see how many problems you can solve. We all need to stay humble.